The Wrightsock Double Layer Running 566 Crew Socks are a flat knit, mid-weight sock with no cushioning, designed for all running activities. The Running is Wrightsock's original sock still immensely popular, sought after, and used by runners the world over. Wrightsock's Double Layer Anti-blister system reduces friction between your feet and shoes, eliminating blisters.

The original Wrightsock Running sock is a bit thicker than the Running II, and provides all the protection you need without creating fit issues and blisters. The high crew cut on the Running sock is ideal for colder days or trail runs - when your legs need a bit of extra protection from the elements. The Running Sock is also available in a No Show with Tab (Style 563), a Low Quarter (Mini Crew) (Style 564) and a Quarter Crew cut (Style 565).